Re: [whatwg/dom] `MutationObserver` flag to observe mutations in (open) shadow trees to facilitate polyfills of HTML syntax (Issue #1287)

LeaVerou left a comment (whatwg/dom#1287)

> observing open shadow trees might be a bold step forward 

Why? Is the concern encapsulation? Performance? Something else?

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Received on Wednesday, 12 November 2025 09:31:03 UTC